Datasheet

AFE030
SBOS588A –DECEMBER 2011– REVISED DECEMBER 2011 www.ti.com
ELECTRICAL CHARACTERISTICS: Two-Wire Interface
At T
J
= +25°C, PA_V
S
= 16 V, V
AVDD
= V
DVDD
= 3.3 V, and PA_ISET (pin 46) connected to ground, unless otherwise noted.
AFE030
PARAMETER CONDITIONS MIN TYP MAX UNIT
TWO-WIRE TRANSMITTER
Frequency range
(1)
50 kHz
Leakage input current
0 ≤ V
IN
≤ DV
DD
–1 0.01 1 μA
(E_Tx_In, E_Tx_Clk)
INPUT LOGIC LEVELS (E_Tx_In, E_Tx_Clk)
V
IH
High-level input voltage 0.7 × DV
DD
V
V
IL
Low-level input voltage 0.3 × DV
DD
V
OUTPUT LOGIC LEVELS (E_Tx_Out)
V
OH
High-level output voltage I
OH
= 3 mA AV
DD
– 0.4 AV
DD
V
V
OL
Low-level output voltage I
OL
= –3 mA GND GND + 0.4 V
TWO-WIRE RECEIVER
Gain –4.5 dB
Frequency range 300 kHz
Maximum sink current 25 mA
Maximum source current 25 mA
Input terminal offset Referenced to V
AVDD
/2 –100 10 100 mV
Input impedance 78 kΩ
(1) The two-wire transmitter circuit is tested at Tx_CLK = 10 MHz.
ELECTRICAL CHARACTERISTICS: Zero-Crossing Detector
At T
J
= +25°C, PA_V
S
= 16 V, V
AVDD
= V
DVDD
= 3.3 V, and PA_ISET (pin 46) connected to ground, unless otherwise noted.
AFE030
PARAMETER CONDITIONS MIN TYP MAX UNIT
Input voltage range AV
DD
– 0.4 AV
DD
+ 0.4 V
Input current range –10 +10 mA
Input capacitance 3 pF
Rising threshold 0.45 0.9 1.35 V
Falling threshold 0.25 0.5 0.75 V
Hysteresis 0.20 0.4 0.60 V
Jitter 50 Hz, 240 V
RMS
10 ns
10 Copyright © 2011, Texas Instruments Incorporated
Product Folder Link(s): AFE030